Windows 10 not opening .jpg created on mac
I created a 1 page document in Pages 5 with 8 photographs, and decided not to export as PDF as images are a bit soft even at large file size.
Instead, I screen-grabbed as a PNG and then converted to JPG using Pixelmator.
Looks great on a mac but none of my Windows 10 using journalists can open it. Any clues as to what in my workflow has caused a problem with a simple .jpg file?
iMac, OS X El Capitan (10.11.3), 2.7 Core i5, 12GB Ram